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Now showing items 1639-1658 of 3128

    • A Machine Learning Approach to Predict Gene Regulatory Networks in Seed Development in Arabidopsis 

      Grene, R; Heath, LS; Li, S; Collakova, E; Elmarekaby, H; Ni, Y; Aghamirzaie, D (Frontiers Media, 2016-12-23)
    • Machine Learning in the Bandit Setting: Algorithms, Evaluation, and Case Studies (CS Seminar Lecture Series) 

      Li, Lihong (2012-02-10)
      Abstract: Much of machine-learning research is about discovering patterns---building intelligent agents that learn to predict future accurately from historical data. While this paradigm has been extremely successful in ...
    • Machine-inspired Enhancements of the Simplex Algorithm 

      Kalan, James E. (Department of Computer Science, Virginia Polytechnic Institute & State University, 1975), CS75001-R
      Using spare storage and over-lapping overhead available during the generation of the pricing form in the revised-simplex algorithm allows the production of additional reduced costs of variables which may be effectively ...
    • Macroscopic properties of carbon nanotubes from molecular-mechanics simulations 

      Sears, A.; Batra, Romesh C. (American Physical Society, 2004-06-01)
      Results of molecular-mechanics simulations of axial and torsional deformations of a single wall carbon nanotube are used to find Young's modulus, the shear modulus, and the wall thickness of an equivalent continuum tube ...
    • Magnetic field of the transition current system: dawn-dusk asymmetry 

      Belenkaya, E. S.; Alexeev, , II; Clauer, C. R. (Copernicus Publications, 2007)
      In this paper we consider the interactions of coronal mass ejections (CMEs) with the Earth's magnetosphere for the specific case in which there is a sharp increase in the dynamic pressure (interplanetary shock) that is ...
    • Magnetic force microscopy investigation of domain structures in Fe-x at. % Ga single crystals (12 < x < 25) 

      Bai, Feiming; Li, Jiefang; Viehland, Dwight D.; Wu, D.; Lograsso, Thomas A. (American Institute of Physics, 2005-07-15)
      The domain structure of furnace-cooled (FC) and post-annealed (PA) Fe-x at. % Ga (x=12, 20, and 25) crystals has been investigated by magnetic force microscopy. For both FC and PA Fe-12 at. % Ga, the domains were found to ...
    • Magnetic force microscopy investigation of the static magnetic domain structure and domain rotation in Fe-x at. %Ga alloys 

      Bai, Feiming; Zhang, H. W.; Li, Jiefang; Viehland, Dwight D. (AIP Publishing, 2009-10-01)
      Magnetic domain structures and domain rotation process in Fe-x at. %Ga (x=12, 19, and 25) alloys have been studied by magnetic force microscopy. Our results show that the missing connection between magnetic domains and the ...
    • Magnetic Microsphere-Based Mixers for Microdroplets 

      Roy, T.; Sinha, Ashok; Chakraborty, S.; Ganguly, R.; Puri, Ishwar K. (AIP Publishing, 2009-02-01)
      While droplet-based microfluidic systems have several advantages over traditional flow-through devices, achieving adequate mixing between reagents inside droplet-based reactors remains challenging. We describe an active ...
    • Magnetic Sensing with Ferrofluid and Fiber Optic Connectors 

      Homa, Daniel; Pickrell, Gary (Mdpi Ag, 2014-02-25)
      A simple, cost effective and sensitive fiber optic magnetic sensor fabricated with ferrofluid and commercially available fiber optic components is described in this paper. The system uses a ferrofluid infiltrated extrinsic ...
    • Magnetic-field-induced phase transition in BiFeO3 observed by high-field electron spin resonance: Cycloidal to homogeneous spin order 

      Ruette, B.; Zvyagin, S.; Pyatakov, Alexander P.; Bush, A.; Li, Jiefang; Belotelov, V. I.; Zvezdin, A. K.; Viehland, Dwight D. (American Physical Society, 2004-02-27)
      Bismuth ferrite is a magnetoelectric material, which simultaneously has polarization and spin orders. We have used electron spin resonance (ESR) as a local probe of the magnetic order in the magnetic-field range of 0-25 ...
    • Magnetoelectric and multiferroic properties of variously oriented epitaxial BiFeO3-CoFe2O4 nanostructured thin films 

      Yan, Li; Wang, Zhiguang; Xing, Zengping; Li, Jiefang; Viehland, Dwight D. (American Institute of Physics, 2010-03-15)
      We report the ferroelectric, ferromagnetic, and magnetoelectric (ME) properties of self-assembled epitaxial BiFeO3-CoFe2O4 (BFO-CFO) nanostructure composite thin films deposited on (001), (110), and (111) SrTiO3 (STO) ...
    • Magnetoelectric effect in crystallographically textured BaTiO3 films deposited on ferromagnetic metallic glass foils 

      Wang, Zhiguang; Yan, Li; Yang, Yaodong; Li, Jiefang; Das, Jaydip; Geiler, Anton L.; Yang, Aria F.; Chen, Yajie; Harris, Vincent G.; Viehland, Dwight D. (American Institute of Physics, 2011-02-01)
      We demonstrate a significant control of the polarization response under an applied magnetic field for a magnetoelectric (ME) heterostructure. This structure was comprised of a 2 mu m thick ferroelectric BaTiO3 (BTO) film ...
    • Magnetoelectric effect in sputtered composites 

      Stein, Simon; Wuttig, Manfred; Viehland, Dwight D.; Quandt, Eckhard (American Institute of Physics, 2005-05-15)
      The magnetoelectric effect in millimeter size PMN-PT/Terfenol-D composites is known. In an effort towards miniaturization, we report on the magnetoelectric effect in micrometer-size sputtered composites. Multilayers of ...
    • Magnetoelectric effect in Terfenol-D/Pb(Zr,TiO)(3)/mu-metal laminate composites 

      Dong, Shuxiang; Zhai, Junyi; Li, Jiefang; Viehland, Dwight D. (AIP Publishing, 2006-09-01)
      The authors have found that the required dc magnetic bias of magnetoelectric (ME) laminates can be significantly altered, by incorporating additional high-permeability mu-metal layers. Investigations have focused on ...
    • Magnetoelectric gyration effect in Tb1-xDyxFe2-y/Pb(Zr,Ti)O-3 laminated composites at the electromechanical resonance 

      Dong, Shuxiang; Zhai, Junyi; Li, Jiefang; Viehland, Dwight D.; Bichurin, Mirza I. (AIP Publishing, 2006-12-01)
      A giant current-to-voltage (I-V) gyration effect was found in magnetostrictive Tb1-xDyxFe2-y and piezoelectric Pb(Zr,Ti)O-3 laminated composites. An equivalent circuit theory was developed for magnetoelectric gyration, ...
    • Magnetoelectric Interactions in Lead-Based and Lead-Free Composites 

      Bichurin, Mirza I.; Petrov, Vladimir M.; Zakharov, Anatoly; Kovalenko, Denis; Yang, Su Chul; Maurya, Deepam; Bedekar, Vishwas; Priya, Shashank (MDPI, 2011-04-06)
      Magnetoelectric (ME) composites that simultaneously exhibit ferroelectricity and ferromagnetism have recently gained significant attention as evident by the increasing number of publications. These research activities are ...
    • Magnetoelectric nonlinearity in magnetoelectric laminate sensors 

      Shen, Liangguo; Li, Menghui; Gao, Junqi; Shen, Ying; Li, Jiefang; Viehland, Dwight D.; Zhuang, Xin; Sing, M. Lam Chok; Cordier, Christophe; Saez, Sebastien; Dolabdjian, Christophe (American Institute of Physics, 2011-12-01)
      A nonlinearity in the magnetoelectric coefficient, alpha(Nonlin)(ME), of Metglas/Pb(Zr,Ti)O(3) (PZT) and Metglas/Pb(Mg(1/3),Nb(2/3))O(3)-PbTiO(3) (PMN-PT) laminate sensors has been observed. This nonlinearity was found to ...
    • Magnetoelectric properties of core-shell particulate nanocomposites 

      Islam, Rashed A.; Bedekar, Vishwas; Poudyal, Narayan; Liu, J. Ping; Priya, Shashank (American Institute of Physics, 2008-11-15)
      In this study, we report results on magnetoelectric (ME) core-shell Pb(Zr,Ti)O(3) (PZT)-NiFe(2)O(4) (NF) particulate nanocomposites. NF particles forming the shell had size in range of 20-30 nm. The grain size of sintered ...
    • Magnetoelectric properties of flexible BiFeO3/Ni tapes 

      Yan, Li; Zhuo, M.; Wang, Z.; Yao, J.; Haberkorn, N.; Zhang, S.; Civale, L.; Li, J.; Viehland, Dwight D.; Jia, Q. X. (AIP Publishing, 2012-07-01)
      We report ferroelectric (FE), ferromagnetic, and magnetoelectric (ME) properties of BiFeO3 films directly deposited on flexible magnetic Ni tapes. Without use of metal-oxide and/or noble metal buffer layer between the ...
    • Magnetoelectric quasi-(0-3) nanocomposite heterostructures 

      Li, Yanxi; Wang, Zhongchang; Yao, Jianjun; Yang, Tiannan; Wang, Zhiguang; Hu, Jia-Mian; Chen, Chunlin; Sun, Rong; Tian, Zhipeng; Li, Jiefang; Chen, Long-Qing; Viehland, Dwight D. (Nature Publishing Group, 2015-12-01)
      Magnetoelectric composites of magnetic and ferroelectric components are promising for their use in applications such as information storage. Here, the authors find that magnetic quasiparticles embedded in a ferroelectric ...